Degradarea substanţei organice din sol in relaţie cu elementele biogene din celulele microbiene

Abstract

The fodder crop rotation soil contains about 737 - 869 kg C/ha, 206 - 243 k N/ha, 44 - 51 kg P/ha, 15 - 17 kg K/ha, and in the land the quantity of the biogenic elements represents about 2127 kg/ha, 596, 128 and 43 kg/ha, respectively. The quota of microbial carbon in the studied variants makes up 0,94 - 1, 02 in the alfalfa crop rotation and 0, 48 - 0, 98% in the crop rotation without alfalfa, and in the fallow land it constitutes about 2, 53 %